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AWS - Custom metric

What is a Custom metric?

You can create a custom metric (script) from your EC2 instance and monitor that metric by pushing it to CloudWatch.

How to push your metric to CloudWatch? 

$ crontab -e

$ crontab -e

Add the following line to execute your script every minute: 

*/1 * * * * /home/ec2-user/mem.sh

Save and exit.

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